Delta SI V Seat (Like New)

Snagged the "Like New" version and honestly can't tell it wasn't fresh out of the box. The foam core is dense enough that I didn't bottom out on rocky ground during a long picnic, and it packed down smaller than my rolled-up jacket.

Foam kept its shape perfectly even after sitting on it for three hours at the race track, and the valve sealed tight with zero air loss. Packs down small enough to toss in my daypack without a second thought.

The self-inflating valve works exactly as it should—unroll it, open it up, and the foam does the work in under a minute. I've used it on both gravel and damp grass, and the rectangular shape stays put without sliding around.